# Lesson 9 Meaningful Possibilities Solidify Understanding

Use Pascal’s triangle to expand the expressions.

### 1.

### 2.

### 3.

### 4.

### 5.

### 6.

### 7.

A farmer is harvesting his field of potatoes and wonders what the average weight of the potatoes is. He decides to randomly select

### 8.

If the farmer were to double the sample size, what would happen to the interval of plausible values? Would the interval increase, decrease, or stay the same? Why?

### 9.

Based on your interval of plausible values, is it likely that the potatoes for the entire field weigh more than

### 10.

Suppose the actual weight of the potatoes in the field is

### 11.

If the actual weight of potatoes in the field is really

Fill in the blanks on the sentences below.

### 12.

The expression **perfect square trinomial**. I can recognize it because the first and last terms will always be perfect . The middle term will be

### 13.

The expression **difference of **** squares**. I can recognize it because it’s a binomial and the first and last terms are perfect . The sign between the first term and the last term is always a .

The expression

### 14.

The expression **sum of cubes**. I can recognize it because it’s a binomial and the first and last terms are . The expression

Factor using what you know about special products.